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  1. 24 5月, 2012 2 次提交
  3. 23 5月, 2012 5 次提交
  5. 22 5月, 2012 14 次提交
  7. 21 5月, 2012 8 次提交
    • J
      UBI: modify ubi_wl_flush function to clear work queue for a lnum · 62f38455
      由 Joel Reardon 提交于 
      This patch modifies ubi_wl_flush to force the erasure of
particular volume id / logical eraseblock number pairs. Previous functionality
is preserved when passing UBI_ALL for both values. The locations where ubi_wl_flush
were called are appropriately changed: ubi_leb_erase only flushes for the
erased LEB, and ubi_create_volume forces only flushing for its volume id.
External code can call this new feature via the new function ubi_flush() added
to kapi.c, which simply passes through to ubi_wl_flush().

This was tested by disabling the call to do_work in ubi thread, which results
in the work queue remaining unless explicitly called to remove. UBIFS was
changed to call ubifs_leb_change 50 times for four different LEBs. Then the
new function was called to clear the queue: passing wrong volume ids / lnum,
correct ones, and finally UBI_ALL for both to ensure it was finally all
cleard. The work queue was dumped each time and the selective removal
of the particular LEB numbers was observed. Extra checks were enabled and
ubifs's integck was also run. Finally, the drive was repeatedly filled and
emptied to ensure that the queue was cleared normally.

Artem: amended the patch.
Signed-off-by: NJoel Reardon <reardonj@inf.ethz.ch>
Signed-off-by: NArtem Bityutskiy <artem.bityutskiy@linux.intel.com>
      62f38455
    • A
      UBI: introduce UBI_ALL constant · 05a3cb7d
      由 Artem Bityutskiy 提交于 
      Joel will use it in his 'ubi_flush()' extention to specify all eraseblocks.
Also amend the comment for UBI_UNKNOWN - it is used beyond attaching info
structure now.
Signed-off-by: NArtem Bityutskiy <artem.bityutskiy@linux.intel.com>
      05a3cb7d
    • N
      md: add possibility to change data-offset for devices. · c6563a8c
      由 NeilBrown 提交于 
      When reshaping we can avoid costly intermediate backup by
changing the 'start' address of the array on the device
(if there is enough room).

So as a first step, allow such a change to be requested
through sysfs, and recorded in v1.x metadata.

(As we didn't previous check that all 'pad' fields were zero,
 we need a new FEATURE flag for this.
 A (belatedly) check that all remaining 'pad' fields are
 zero to avoid a repeat of this)

The new data offset must be requested separately for each device.
This allows each to have a different change in the data offset.
This is not likely to be used often but as data_offset can be
set per-device, new_data_offset should be too.

This patch also removes the 'acknowledged' arg to rdev_set_badblocks as
it is never used and never will be.  At the same time we add a new
arg ('in_new') which is currently always zero but will be used more
soon.

When a reshape finishes we will need to update the data_offset
and rdev->sectors.  So provide an exported function to do that.
Signed-off-by: NNeilBrown <neilb@suse.de>
      c6563a8c
    • N
      md: allow a reshape operation to be reversed. · 2c810cdd
      由 NeilBrown 提交于 
      Currently a reshape operation always progresses from the start
of the array to the end unless the number of devices is being
reduced, in which case it progressed in the opposite direction.

To reverse a partial reshape which changes the number of devices
you can stop the array and re-assemble with the raid-disks numbers
reversed and it will undo.

However for a reshape that does not change the number of devices
it is not possible to reverse the reshape in the middle - you have to
wait until it completes.

So add a 'reshape_direction' attribute with is either 'forwards' or
'backwards' and can be explicitly set when delta_disks is zero.

This will become more important when we allow the data_offset to
change in a reshape.  Then the explicit statement of what direction is
being used will be more useful.

This can be enabled in raid5 trivially as it already supports
reverse reshape and just needs to use a different trigger to request it.
Signed-off-by: NNeilBrown <neilb@suse.de>
      2c810cdd
    • R
      [media] patch for Asus My Cinema PS3-100 (1043:48cd) · 75c7dbca
      由 remi schwartz 提交于 
      Signed-off-by: NRemi Schwartz <remi.schwartz@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>
      75c7dbca
    • A
      UBI: amend commentaries WRT dtype · 44156267
      由 Artem Bityutskiy 提交于 
      Richard removed the "dtype" hint, but few commentaries were left and this patch
removes them. I've also added a better description about the "dtype" field in
the ubi-user.h for people who may ever wonder what was that dtype thing about.

This patch also adds an important note that it is better to use value "3" for
the "dtype" field.
Signed-off-by: NArtem Bityutskiy <artem.bityutskiy@linux.intel.com>
      44156267
    • R
      UBI: remove data type hint from ubi-user.h · a65a0eb6
      由 Richard Weinberger 提交于 
      This finally removes the data type hint from the UBI ABI.
>From now on the "dtype" field will be ignored and must not used
anymore.
Signed-off-by: NRichard Weinberger <richard@nod.at>
Signed-off-by: NArtem Bityutskiy <artem.bityutskiy@linux.intel.com>
      a65a0eb6
    • R
      UBI: Kill data type hint · b36a261e
      由 Richard Weinberger 提交于 
      We do not need this feature and to our shame it even was not working
and there was a bug found very recently.
	-- Artem Bityutskiy

Without the data type hint UBI2 (fastmap) will be easier to implement.
Signed-off-by: NRichard Weinberger <richard@nod.at>
Signed-off-by: NArtem Bityutskiy <artem.bityutskiy@linux.intel.com>
      b36a261e
  9. 20 5月, 2012 11 次提交